Home / 379,240.72-568,784.06-139,272.14

Finding the Fourth Proportional to 379,240.72, 568,784.06 and 139,272.14

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Solution

The fourth proportional to 379,240.72, 568,784.06 and 139,272.14 is: 208,879.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,240.72 : 568,784.06 = 139,272.14 : x
  2. Step 2: Convert to fraction form
    379,240.72/568,784.06 = 139,272.14/x
  3. Step 3: Cross multiply
    379,240.72x = 568,784.06 × 139,272.14
  4. Step 4: Simplify right side
    379,240.72x = 79,215,774,481.96
  5. Step 5: Solve for x
    x = 79,215,774,481.96/379,240.72
  6. Step 6: Final answer
    x = 208,879.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.